projector

noun

pro·​jec·​tor prə-ˈjek-tər 

1

: one that plans a project

specifically : promoter

2

: one that projects: such as

a

: a device for projecting a beam of light

b

: an optical instrument for projecting an image upon a surface

c

: a machine for projecting movies on a screen

3

: an imagined line from an object to a surface along which projection takes place

Examples of projector in a Sentence

Recent Examples on the Web

Check out our other guides to the best telescopes, binoculars, cameras, star projectors, drones, lego and much more. —Alexander Cox, Space.com, 14 May 2025

Snowfall: None 1 of 25 The projector at the Adler Planetarium with Paul Langa, from left, Curt Richter, Prof. Phil Fox and Ernest A. Grunsfeld, circa 1930. —Kori Rumore, Chicago Tribune, 12 May 2025

Library officials plan to use the money to upgrade projectors and projector screens at the library branches, create community outreach kits and improve the display areas and accessibility of library material in the different branches, said Jacquie Kramer, library director. —Mary Divine, Twin Cities, 10 May 2025

Muybridge had invented what is regarded as the first movie projector. —Bob Blaisdell, Christian Science Monitor, 8 May 2025

Word History

First Known Use

1596, in the meaning defined at sense 1

Phrases Containing projector

• opaque projector
• overhead projector

Rhymes for projector

• bisector
• collector
• connector
• corrector
• defector
• deflector
• detector
• director
• dissector
• effector
• ejector
• elector

Kids Definition

projector

noun

pro·​jec·​tor prə-ˈjek-tər 

: a machine for projecting an image or pictures upon a surface

a motion-picture projector

a slide projector